What to clean old lap sealant with besides denatured alcohol

Most places that sell paint have denatured alcohol. Local hardware store, Home Depot, Lowes, etc.

Wow, I always thought CA was screwed up with all the restrictions, now even denatured alcohol !

Had really good results with Spray 9 cleaner. Learned about the stuff from an auto detailer. He likes using it on RV roofs and vertical streaks down the sides. It's a degreaser and also kills mildew so its a better choice over a product like purple power when you want to kill possible germs.

Used a 99c store kitchen brush and got it close to fully clean. Followed up with 91% IPA and didnt notice any further stain removal. Kind of think the alcohol could be more hurtful than helpful.

I need to buy another tube of sealant. Still have a couple areas with old dirty sealant that I can clean and do a test. Will use a q tip and try denatured alcohol, mineral spirits, ipa, spray 9.

I think the mineral spirits will probably clean the most grime off. While spray 9 is probably the least aggressive and safest while still cleaning great.

Always used simple rubbing alcohol.

I use a cloth dampened with mineral spirits. Never allow mineral spirits to puddle up on an EPDM roof however.

Not in good ole cali anymore. Brief search brought a boat forum and in January a couple guys bought some from West Marine in CA. They think the floor staff just didnt know and hadn't removed the product yet. The boat guys use it for stove fuel.

My buddy does underground construction and says they can still get it in CA. Sounds like you need a permit.

The big box stores - Lowes/HD sells denatured alcohol which is 85% to 95% alcohol.

Larry

You have a few choices.

In an aerosol can, try Brakleen from any auto parts store. It's a strong degreaser generally for cleaning brake/carburetor parts.

In a can, you can use acetone (dimethyl ketone) or MEK (methyl ethyl ketone) if its too hot for acetone. Mixed xylene, toluene, or lacquer thinner will also work, if available in your area.

If not available in retail stores, try a wholesale automotive paint store if you REALLY want to get serious.

Make sure you read/understand the labels before use so you don't light yourself (or anything else) on fire. These solvents are flammable and some will quickly dissolve paint/plastic.

Chum lee

Ronsonol lighter fluid cleans darn near anything.

They sure do, but wont ship to my location.